Advanced Placement (AP), 03.04.2020 22:49 radaishasmithoxngbj
The motor oil in a car's engine will accumulate dirt over time, and it is recommended that the oil in a car's
motor be changed regularly. Car mechanics use an instrument called a hydrometer to determine if the oil
needs to be changed. Explain the steps in using a hydrometer and how a hydrometer uses specific gravity to
test the motor oil for dirt.
BI y
(600)
Answers: 3
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